CN217752499U - Universal die carrier for rear cover - Google Patents

Abstract

The application discloses a universal die carrier for a rear cover, which comprises a die carrier body, wherein the middle part of the die carrier body is provided with an installation cavity for placing a die core; positioning components are arranged on the side part of the mounting cavity, and positioning areas for positioning the die core are formed among the positioning components; the driving mechanisms are arranged on two adjacent side walls of the die carrier body and are connected with the positioning assembly, so that the positioning assembly is driven by the driving mechanisms to respectively and independently adjust the transverse and longitudinal intervals of the positioning area, and further the die cores with different sizes can be positioned. The beneficial effect of this application: replace manual operation through actuating mechanism, can also effectual improvement change efficiency when reducing intensity of labour.

Description

Universal die carrier for rear cover

Technical Field

The application relates to the technical field of molds, in particular to a universal mold frame.

Background

The common multi-size products such as the rear cover of the color TV are basically the same in structure, but the sizes of the rear cover matched with the color TV are different due to the different production sizes of the color TV, namely, when the products are subjected to injection molding, the products with different sizes are only different in the sizes of the mold cores. If each size is matched with a mould frame independently, a large amount of production cost is increased. Therefore, with the development of the mold technology, a universal mold frame is generally adopted for the production of products with multiple sizes, so that the production cost can be effectively reduced.

However, when the existing universal mold frame is used, the mold core is basically replaced manually, which results in time and labor waste for replacing the mold core, and the precision after installation is not high, so that a universal mold frame capable of conveniently replacing the mold core is urgently needed.

SUMMERY OF THE UTILITY MODEL

An object of this application is to provide a general die carrier for rearmounted lid, can conveniently change mould benevolence to improve production efficiency.

In order to achieve the above purpose, the technical scheme adopted by the application is as follows: a universal mould frame for a rear cover comprises a mould frame body, wherein an installation cavity for placing a mould core is arranged in the middle of the mould frame body; positioning components are mounted on the side part of the mounting cavity, and positioning areas for positioning the die core are formed among the positioning components; and driving mechanisms are arranged on two adjacent side walls of the die carrier body and are connected with the positioning assemblies, so that the positioning assemblies are driven by the driving mechanisms to respectively and independently adjust the transverse and longitudinal intervals of the positioning areas, and further the die cores with different sizes can be positioned. The manual operation is replaced by the driving mechanism, so that the labor intensity is reduced, and meanwhile, the replacement efficiency can be effectively improved.

Preferably, the positioning assembly comprises four positioning plates and a pair of guide rods, and the positioning plates are L-shaped and correspondingly arranged at four corners of the installation cavity; the positioning plates on two opposite sides of the installation cavity are driven by the driving mechanism to be synchronously away from or close to each other, and then the mold cores with different sizes are accurately positioned.

Preferably, the back parts of two sections of the positioning plates perpendicular to each other are provided with connecting seats, so that two adjacent groups of the positioning plates are connected with the driving mechanism through the connecting seats; between each other set of the positioning plates, one end of the guide rod is fixed with one of the connecting seats, the other end of the guide rod is in sliding fit with the other connecting seat, and the positioning plates can be conveniently matched with the driving mechanism and the guide rod through the connecting seats.

Preferably, the inner wall of the mounting cavity is provided with a groove, so that when the positioning plate is attached to the inner wall of the mounting cavity, the connecting seat is located in the groove, the size of the positioning area is effectively increased, and the application range of the positioning area is increased.

Preferably, the driving mechanism is installed in the middle of the side wall of the die carrier body and comprises a motor and a transmission assembly; the transmission assembly is in threaded connection with the positioning plates on the two sides respectively, the motor is fixedly arranged on the outer side of the die carrier body, and the output end of the motor is matched with the transmission assembly, so that the transmission assembly is driven by the motor to drive the two groups of positioning plates on the two sides to be synchronously close to or far away from each other, and then the transverse or longitudinal distance of the positioning area is adjusted.

Preferably, the transmission assembly comprises an installation box, a shaft sleeve and a pair of threaded shafts, the shaft sleeve is rotatably installed on one side of the installation box so that the shaft sleeve is connected with the output end of the motor, the threaded shafts are symmetrically and rotatably installed on two opposite sides of the installation box so that the threaded shafts are in threaded connection with the corresponding connecting seats, and the threaded shafts and the ends of the shaft sleeve extending into the installation box are mutually meshed through bevel gears so that the shaft sleeve drives the threaded shafts to rotate under the driving of the motor, and then the positioning plates on two sides are driven to move close to or away from each other.

Preferably, the motor is mounted on the side wall of the die carrier body through a mounting frame, a spline shaft is arranged at the output end of the motor, and the spline shaft is in spline connection with the shaft sleeve; the side walls of the installation cavity corresponding to the driving mechanism are provided with communicating grooves communicated with the outer side of the die carrier body, and the bottom of each communicating groove is provided with a limiting sliding groove extending into the installation cavity; the mounting box is slidably mounted in the communicating groove, a sliding block is arranged at the bottom of the mounting box, and the mounting box is suitable for being in sliding fit with the limiting sliding groove through the sliding block, so that when one of the driving mechanisms works, the transmission assembly on the other driving mechanism is suitable for synchronously sliding along with the positioning plate.

Preferably, the driving mechanism further comprises a pair of distance sensors, the distance sensors are correspondingly arranged on the inner wall of the installation cavity, and the distance sensors are electrically connected with the motor, so that when the mold core is placed in the installation cavity, the distance sensors are suitable for detecting the distance from the side wall of the mold core to the corresponding side wall of the installation cavity, and then the motor is suitable for controlling the moving distance of the positioning plate according to the detection result, thereby realizing accurate positioning of the mold core and avoiding the mold core from being crushed.

Preferably, a baffle is arranged at the upper end of the included angle of the positioning plate and is suitable for abutting against the upper end of the mold core, so that the degree of freedom of the mold core in the height direction is limited.

Compared with the prior art, the beneficial effect of this application lies in:

(1) The driving mechanism can respectively drive the positioning assembly to realize the independent adjustment of the transverse distance and the longitudinal distance of the positioning area, so that the positioning assembly can position the die core with any length-width ratio. Compared with the traditional fixed-proportion positioning, the setting range of the mold core can be effectively increased, and the production cost is effectively reduced.

(2) The positioning components move synchronously in the transverse direction or the longitudinal direction, so that the die core can be positioned in the center of the mounting cavity. Compared with the traditional reference positioning mode, the positioning precision of the mold core can be effectively improved, and the molding quality of a product is further improved.

(3) The manual operation is replaced by the driving mechanism, so that the labor intensity is reduced, and meanwhile, the replacement efficiency can be effectively improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the internal structure of the middle mold frame body of the present invention;

FIG. 3 is a schematic view of the present invention in a partially exploded state;

fig. 4 is a schematic structural view of the middle die carrier body of the present invention;

FIG. 5 is a schematic structural view of a positioning assembly of the present invention;

fig. 6 is a schematic view of the exploded state of the driving mechanism of the present invention;

fig. 7 is a schematic top view of the interior of the present invention;

fig. 8 is a top cross-sectional view of the present invention;

FIG. 9 is a schematic view of a position component of the present invention in use;

in the figure: the die carrier comprises a die carrier body 1, a mounting cavity 100, a communicating groove 110, a limiting sliding groove 120, a groove 130, a positioning assembly 2, a positioning plate 21, a connecting seat 211, a baffle plate 212, a guide rod 22, a driving mechanism 3, a motor 31, a spline shaft 311, a mounting frame 32, a mounting box 33, a sliding block 331, a shaft sleeve 34, a threaded shaft 35 and a die core 4.

Detailed Description

The present application is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment.

In the description of the present application, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be construed as limiting the specific scope of protection of the present application.

It is noted that the terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

In one preferred embodiment of the present application, as shown in fig. 1 to 9, a universal mold base for a rear cover includes a mold base body 1, and a mounting cavity 100 for placing a mold core 4 is provided in the middle of the mold base body 1. The side of the installation cavity 100 is provided with positioning components 2, and a positioning area for positioning the installation mold core 4 can be formed between the positioning components 2. Actuating mechanism 3 is all installed to two adjacent lateral walls of die carrier body 1, and two actuating mechanism 3 all cooperate with locating component 2 to be connected to make locating component 2 can be solitary under the drive of arbitrary actuating mechanism 3 adjust the horizontal or fore-and-aft interval in locating area, and then realize fixing a position not unidimensional mould benevolence 4. The die core 4 with any length-width ratio can be positioned by driving the positioning component 2 through the driving mechanism 3; compared with the traditional fixed-proportion positioning, the design range of the setting size of the mold core 4 can be effectively increased, and the production cost is effectively reduced. Meanwhile, manual operation is replaced by the driving mechanism 3, so that the labor intensity is reduced, and meanwhile, the replacement efficiency can be effectively improved.

In one embodiment of the present application, as shown in fig. 2 to 5 and 7 to 9, the positioning assembly 2 includes four positioning plates 21 and a pair of guide rods 22; wherein the positioning plates 21 are all L-shaped and are correspondingly disposed at four corners of the mounting cavity 100. Four sets of positioning plates 21 can be obtained by grouping adjacent positioning plates 21. Wherein adjacent two sets of locating plates 21 carry out the cooperation that corresponds with two actuating mechanism 3 respectively and are connected, cooperate through guide arm 22 between every group locating plate 21 of remaining two sets of to the locating plate 21 that makes the arbitrary relative both sides of installation cavity 100 keep away from each other or be close to in step under actuating mechanism 3's drive, and then can carry out accurate location to not unidimensional mould benevolence 4.

It will be appreciated that the movement of the positioning assembly 2 in either the transverse or longitudinal direction is synchronised so as to ensure that the core 4 is positioned substantially centrally in the cavity 100. Compared with the traditional reference positioning mode, the positioning precision of the mold insert 4 can be effectively improved, and the molding quality of the product is further improved.

For purposes of understanding, the four positioning plates 21 may be labeled as a first positioning plate, a second positioning plate, a third positioning plate, and a fourth positioning plate in that order. So that one of the driving mechanisms 3 can be connected with the first positioning plate and the second positioning plate respectively, and the other driving mechanism 3 can be connected with the second positioning plate and the third positioning plate respectively; the third positioning plate and the fourth positioning plate and the first positioning plate are connected in a matching way through a guide rod 22. Therefore, when the driving mechanism 3 connected with the first positioning plate and the second positioning plate works, the first positioning plate can drive the fourth positioning plate to synchronously move through the guide rod 22, the second positioning plate can drive the third positioning plate to synchronously move through the other driving mechanism 3, and the moving directions of the first positioning plate and the second positioning plate are opposite or back to each other, so that the transverse or longitudinal distance of a positioning area is adjusted. When the driving mechanism 3 connected with the second positioning plate and the third positioning plate works, the second positioning plate drives the first positioning plate to synchronously move through another driving mechanism 3, the third positioning plate drives the fourth positioning plate to synchronously move through the guide rod 22, and the moving directions of the second positioning plate and the third positioning plate are opposite or back-to-back, so that the longitudinal or transverse distance of the positioning area is adjusted.

In this embodiment, as shown in fig. 5 and 8, the positioning plate 21 is provided with a connecting seat 211 at the back of two vertical sections, so that the driving mechanism 3 can be coupled with the connecting seat 211 to drive the positioning plate 21 to move. Meanwhile, when the positioning plates 21 are connected and matched through the guide rod 22, one end of the guide rod 22 is fixedly connected with the connecting seat 211 on one of the positioning plates 21, and the other end of the guide rod 22 is in sliding fit with the connecting seat 211 on the other positioning plate 21. The connecting seat 211 can facilitate the matching of the positioning plate 21 with the driving mechanism 3 and the guide rod 22, and can ensure the connection strength between the positioning plates 21.

In this embodiment, as shown in fig. 4 and 8, the inner wall of the installation cavity 100 is provided with a groove 130, so that when the positioning plate 21 is attached to the inner wall of the installation cavity 100, the connecting seat 211 can be located in the groove 130, and the size of the positioning area can be effectively increased, thereby increasing the application range of the positioning area.

In this embodiment, as shown in fig. 5 and 9, a baffle 212 is disposed at the upper end of the included angle of the positioning plate 21, and when the positioning plate 21 is positioned and matched with the four corners of the mold core 4, the baffle 212 can prop against the upper end of the mold core 4, so as to limit the degree of freedom of the mold core 4 in the height direction.

In one embodiment of the present application, as shown in fig. 1 to 3 and fig. 6 to 9, the driving mechanism 3 is installed in the middle of the sidewall of the mold frame body 1, and the driving mechanism 3 includes a motor 31 and a transmission assembly. The transmission assembly is in threaded connection with the positioning plates 21 on two sides of the transmission assembly respectively, the motor 31 is fixedly arranged on the outer side of the die carrier body 1, and the output end of the motor 31 is matched with the transmission assembly, so that the transmission assembly is driven by the motor 31 to rotate through threads to drive the two groups of positioning plates 21 on two sides to be synchronously close to or far away from each other, and further the transverse or longitudinal distance of the positioning area can be adjusted.

In this embodiment, as shown in fig. 6 to 9, the mold frame body 1 and the side wall corresponding to the driving mechanism 3 are provided with a communicating groove 110, and the transmission assembly is installed in the communicating groove 110. The transmission assembly comprises an installation box 33, a shaft sleeve 34 and a pair of threaded shafts 35, the shaft sleeve 34 is rotatably installed on one side, close to the motor 31, of the installation box 33, so that the shaft sleeve 34 can be connected with the output end of the motor 31, the two threaded shafts 35 are symmetrically and rotatably installed on two opposite sides of the installation box 33, the threaded shafts 35 are vertically arranged with the shaft sleeve 34, so that the threaded shafts 35 are in threaded connection with connecting seats 211 corresponding to two sides of the transmission assembly, meanwhile, the threaded shafts 35 and the end portions, extending into the installation box 33, of the shaft sleeve 34 are meshed with each other through bevel gears, so that the shaft sleeve 34 drives the threaded shafts 35 to rotate under the driving of the motor 31, further, the threaded shafts 35 are in threaded fit with the connecting seats 211, and the positioning plates 21 on two sides of the transmission assembly can be driven to move close to or away from each other along the axial direction of the threaded shafts 35.

In this embodiment, as shown in fig. 6 and 9, the motor 31 is mounted on the sidewall of the mold frame body 1 through the mounting bracket 32, the output end of the motor 31 is provided with a spline 311, and the spline shaft 311 is in spline connection with the shaft sleeve 34. The side walls of the installation cavity 100 corresponding to the driving mechanism 3 are provided with communicating grooves 110 communicated with the outer side of the die carrier body 1, and the bottoms of the communicating grooves 110 are provided with limiting sliding grooves 120 extending into the installation cavity 100; the installation box 33 is slidably installed in the communication groove 110, and the installation box 33 can be slidably engaged with the limiting sliding groove 120 through the sliding block 331 arranged at the bottom, so that when one of the driving mechanisms 3 works, the transmission component on the other driving mechanism 3 can synchronously slide along with the positioning plate 21.

In this embodiment, the driving mechanism 3 further includes a pair of distance sensors, the distance sensors are correspondingly disposed on the inner wall of the mounting cavity 100, and the distance sensors are electrically connected to the motor 31, so that when the mold core 4 is placed in the mounting cavity 100, the distance sensors can detect the distance from the sidewall of the mold core 4 to the corresponding sidewall of the mounting cavity 100, and convey the detected result to the motor, so that the motor 31 can control the moving distance of the positioning plate 21 according to the detected result, thereby realizing accurate positioning of the mold core 4, and meanwhile avoiding the mold core 4 from being crushed.

It can be understood that, if the driving of the motor 31 is not controlled, when the motor 31 drives the positioning plate 21 to position the mold core 4, the moving speed of the positioning plate 21 is always unchanged, which results in the positioning and clamping of the positioning plate 21 and the mold core 4 through the rigid impact of a large force, so as to easily form impact wear on the side wall of the mold core 4. And through setting up distance sensor, can directly obtain that the distance that the relative both sides of mould benevolence 4 reach corresponding installation cavity 100 both sides is X and Y to can obtain the one-way displacement distance of locating plate 21 and be (X + Y)/2, and then when the displacement distance of locating plate 21 was close (X + Y)/2, can slow down the moving speed of locating plate 21, in order to realize the fine adjustment to the position of mould benevolence 4.

The foregoing has described the general principles, essential features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are merely illustrative of the principles of the application, but that various changes and modifications may be made without departing from the spirit and scope of the application, and such changes and modifications are intended to be within the scope of the application as claimed. The scope of protection claimed by this application is defined by the following claims and their equivalents.

Claims (9)

1. A universal formwork for a rear cover comprising:

the die carrier comprises a die carrier body, wherein the middle part of the die carrier body is provided with an installation cavity for placing a die core;

the positioning assemblies are arranged on the side parts of the mounting cavity, and positioning areas for positioning the die core are formed among the positioning assemblies; and

the driving mechanisms are arranged on the adjacent side walls of the die carrier body and are suitable for being matched with the positioning assemblies, so that the positioning assemblies respectively and independently adjust the transverse and longitudinal distances of the positioning areas under the driving of the two driving mechanisms, and the die cores with different sizes can be positioned.

2. The universal mold frame for rear covers as claimed in claim 1, wherein: the positioning assembly comprises four positioning plates and a pair of guide rods, and the positioning plates are L-shaped and are correspondingly arranged at four corners of the mounting cavity; the adjacent positioning plates are four groups in total, so that the two adjacent positioning plates are correspondingly matched and connected with the driving mechanism respectively, and the rest positioning plates of each group are matched through the guide rods, so that the positioning plates on two opposite sides of the mounting cavity are synchronously far away from or close to each other under the driving of the driving mechanism.

3. The universal mold frame for rear covers as claimed in claim 2, wherein: connecting seats are arranged on the back parts of two sections of the positioning plates, wherein the back parts of the two sections of the positioning plates are vertical to each other, and two adjacent groups of the positioning plates are connected with the driving mechanism through the connecting seats; between the other positioning plates, one end of the guide rod is fixed with one of the connecting seats, and the other end of the guide rod is in sliding fit with the other connecting seat.

4. The universal mold frame for rear covers as claimed in claim 3, wherein: the inner wall of the mounting cavity is provided with a groove, so that when the positioning plate is attached to the inner wall of the mounting cavity, the connecting seat is located in the groove.

5. The universal mold frame for rear covers as claimed in claim 3, wherein: and a baffle is arranged at the upper end of the included angle of the positioning plate and is suitable for abutting against the upper end of the mold core.

6. Universal formwork for back covers according to any of claims 3 to 5, characterized in that: the driving mechanism is arranged in the middle of the side wall of the die carrier body and comprises a motor and a transmission assembly; the transmission assembly is in threaded connection with the positioning plates on the two sides respectively, the motor is fixedly arranged on the outer side of the die carrier body, the output end of the motor is matched with the transmission assembly, so that the transmission assembly is driven by the motor to drive the two positioning plates on the two sides to be synchronously close to or far away from.

7. The universal mold frame for rear covers according to claim 6, wherein: the transmission assembly comprises an installation box, a shaft sleeve and a pair of threaded shafts, the shaft sleeve is rotatably installed on one side of the installation box so that the shaft sleeve is connected with the output end of the motor, the threaded shafts are symmetrically and rotatably installed on two opposite sides of the installation box so that the threaded shafts are in threaded connection with the corresponding connecting seats, and the threaded shafts and the ends, extending into the installation box, of the shaft sleeve are meshed with each other through bevel gears so that the shaft sleeve drives the threaded shafts to rotate under the driving of the motor, and then the positioning plates on two sides are driven to move close to or away from each other.

8. The universal mold frame for rear covers as claimed in claim 7, wherein: the motor is mounted on the side wall of the die carrier body through a mounting frame, a spline shaft is arranged at the output end of the motor, and the spline shaft is in spline connection with the shaft sleeve; the side walls of the installation cavity corresponding to the driving mechanism are provided with communicating grooves communicated with the outer side of the die carrier body, and the bottom of each communicating groove is provided with a limiting sliding groove extending into the installation cavity; the mounting box is slidably mounted in the communicating groove, a sliding block is arranged at the bottom of the mounting box, and the mounting box is suitable for being in sliding fit with the limiting sliding groove through the sliding block, so that when one of the driving mechanisms works, the transmission assembly on the other driving mechanism is suitable for synchronously sliding along with the positioning plate.

9. The universal formwork for back covers of claim 6, wherein: the driving mechanism further comprises a pair of distance sensors, the distance sensors are correspondingly arranged on the opposite inner walls of the installation cavity and electrically connected with the motor, so that when the mold core is placed in the installation cavity, the distance sensors are suitable for detecting the distance from the side walls of the mold core to the corresponding side walls of the installation cavity, and the motor is suitable for controlling the moving distance of the positioning plate according to the detection result.

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